<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="utf-8">
	<title></title>
	<style type="text/css">
		div{
			font-size: 30px;
			/* color: rgb(255,255,255); */
			color: #ffff00;

		}
	</style>
</head>
<body>
	<div>这是一个DIV标签</div>

</body>
</html>